Prometheus Materials biocement and bio-based concrete
Inspired by the composition of coral and seashells, Prometheus Materials combine microalgae (biomineralizing cyanobacteria that are grown using sunlight, seawater, and CO2) with other natural components to produce biocement and bio-based concrete – they are developing a patent-pending photosynthetic biocementation process. They already produce microalgae-based concrete masonry units (CMU) that conform to American Society for Testing and Materials (ASTM) standards and are planning to introduce pre-cast and ready-mix products for roofing tiles, wall panels, sound barriers, and other concrete elements. Image Prometheus Materials.